/* $Id$ */
/** @file
 * IPRT - Generic RTThreadSetAffinityToCpu implementation.
 */

/*
 * Copyright (C) 2011-2020 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 */


/*********************************************************************************************************************************
*   Header Files                                                                                                                 *
*********************************************************************************************************************************/
#include <iprt/thread.h>
#include "internal/iprt.h"

#include <iprt/cpuset.h>
#include <iprt/err.h>



RTR3DECL(int) RTThreadSetAffinityToCpu(RTCPUID idCpu)
{
    int rc;
    if (idCpu == NIL_RTCPUID)
        rc = RTThreadSetAffinity(NULL);
    else
    {
        int iCpu = RTMpCpuIdToSetIndex(idCpu);
        if (iCpu >= 0)
        {
            RTCPUSET CpuSet;
            RTCpuSetEmpty(&CpuSet);
            RTCpuSetAddByIndex(&CpuSet, iCpu);
            rc = RTThreadSetAffinity(&CpuSet);
        }
        else
            rc = VERR_CPU_NOT_FOUND;
    }
    return rc;
}

